请注意:此版本的所有临时修订版将在您购买时提供。范围和目的本国际标准规定了地面光伏（PV）系统中使用的系统平衡（BOS）组件的设计鉴定要求。本标准适用于室内、有条件或无条件操作；或在IEC 60721-2-1中定义的一般露天气候条件下的室外，有保护或无保护。本手册适用于专用太阳能组件，如电池、逆变器、充电控制器、系统二极管组件、散热器、电涌保护器、系统接线盒、最大功率点跟踪装置和开关设备，但也可能适用于其他BOS系统组件。 本标准基于IEC 61215和IEC 61646中规定的光伏组件设计鉴定标准。然而，已经进行了更改，以考虑系统组件平衡的特殊功能，并为不同的服务环境添加不同级别的严重性。灰尘、真菌、昆虫、船舶振动和冲击以及防护等级已添加到相应的环境类别中。高温和低温及湿度限制也已针对适当的使用环境进行了修改。本标准不适用于光伏组件。 IEC 61215或IEC 61646涵盖了这些标准。此外，本标准不适用于集中器组件或完整的光伏系统。具体电气安全方面不属于本标准的一部分。本标准适用于铅酸和镍镉电池和蓄电池。其他电化学存储系统将在可用时包括在内。本试验顺序的目的是确定每个BOS部件的性能特征，并尽可能在合理的成本和时间限制范围内，证明该部件在暴露于制造商规定的拟适用的模拟服务自然环境条件后，能够保持该性能。 如此合格的组件的实际预期寿命将取决于其设计、环境和运行时的系统条件。

Please note: All interim revisions for this edition available at time of your purchase will be included.Scope and objectThis International Standard establishes requirements for the design qualification of balance-of-system (BOS) components used in terrestrial photovoltaic (PV) systems. This standard is suitable for operation in indoor, conditioned or unconditioned; or outdoor in general open-air climates as defined in IEC 60721-2-1, protected or unprotected. It is written for dedicated solar components such as batteries, inverters, charge controllers, system diode packages, heat sinks, surge protectors, system junction boxes, maximum power point tracking devices and switch gear, but may be applicable to other BOS system components.This standard is based on that which is specified in IEC 61215 and IEC 61646 for the design qualification of PV modules. However, changes have been made to account for the special features of the balance-of-system components, and to add different levels of severity for the different service environments. Dust, fungus, insects, shipping vibration and shock, and protection class have been added to the appropriate environmental categories. The high and low temperature and humidity limits have also been modified for the appropriate service environments.This standard does not apply to photovoltaic modules. These are covered by IEC 61215 or IEC 61646. Also, this standard does not apply to concentrator modules or to complete PV systems. Specific electrical safety aspects are not part of this standard.This standard is applicable to lead-acid and nickel-cadmium cells and batteries. Other electrochemical storage systems will be included when they become available.The object of this test sequence is to determine the performance characteristics of each BOS components and to show, as far as possible within reasonable constraints of cost and time, that the component is capable of maintaining this performance after exposure to the simulated service natural environmental conditions for which it is intended to be applicable as specified by the manufacturer. The actual life expectancy of components so qualified will depend on their design, their environment and the system conditions under which they are operated.